Readout architecture for event-driven pixels
AssigneeKiskeya Microsystems LLC
InventorBabak Nouri
Life of this patent
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Abstract
Methods and systems for reading out a pixel array are provided. An example system may include a plurality of pixels. The system may further include an interface circuit configured to provide an analog signal at a sense node. The analog signal may represent the activity of at least two pixels. The interface circuit may include a plurality of capacitors of which at least one capacitor is connected at one end to an output stage of a pixel and at another end to the sense node. The system may further include a readout circuit configured to convert the analog signal at the sense node to a digital signal.
Claims11
A device, comprising:
- a plurality of pixels;
- an interface circuit configured to provide an analog signal at a sense node, the analog signal being representative of the activity of at least two pixels, the interface circuit including a plurality of capacitors of which at least one capacitor is connected at one end to an output stage of a pixel and at another end to the sense node;
- a readout circuit configured to convert the analog signal at the sense node to a digital signal.
A method, for use with a device comprising a plurality of pixels, the method comprising:
- representing activity of least two pixels as at least two digital signals;
- and
- dynamically aggregating the at least two digital signals into one representative analog signal corresponding to an activity of the at least two pixels.
Dependencies are inferred from the claim text.